Technical facts about this news release:
| About the Object |
| Object Name: |
NGC 4449 |
| Object Description: |
Magellanic dwarf irregular galaxy |
| Position (J2000): |
R.A. 12h 28m 10s.96
Dec. +44° 05' 33".4 |
| Constellation: |
Canes Venatici |
| Distance: |
Approximately 13 million light-years (4 Mpc) away. |
| Dimensions: |
This image is 5 arcminutes (19,000 light-years or 6 kiloparsecs) wide. |
|
| About the Data |
| Data Description: |
The Hubble image was created from HST data from proposal 10585: A. Aloisi (STScI/ESA), F. Annibali, C. Leitherer, and J. Mack (STScI), M. Sirianni (STScI/ESA), M. Tosi (INAF, Astronomical Observatory of Bologna), and R. van der Marel (STScI). |
| Instrument: |
ACS/WFC |
| Exposure Date(s): |
November 2005 |
| Exposure Time: |
5.3 hours |
| Filters: |
F435W (B), F555W (V), F658N (Halpha+[N II]), and F814W (I) |
|
| About the Image |
| Image Credit: |
NASA, ESA, A. Aloisi (STScI/ESA), and The Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration |
| Release Date: |
July 3, 2007 |
| Color |
This image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope using several different filters. Three filters were used to sample broad wavelength ranges. One filter was used to sample narrow wavelength emission. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
| F435W (B) |
blue |
| F555W (V) |
green |
| F658N (Halpha+[N II]) and F814W (I) |
red |
|
| Orientation: |
 |
|
